Improvement in combination-locks



tintin tatee anni, didn.

Letters Patent No. 109,457, dated November 22, 1870.

IMPROVEMENT IN COMBlNATION-LOCKS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known that I, SEYMOUR K. SnnLYn, ot'Hndson, in the county of Lenawee and Stateof Michigan, have invented anew and useful Improvement in Combination-Lock; and I do hereby declarethat the following isa full, clear, and exact description thereof',which will enable others skilled in the art to make and use the same,reference being had tothe accompanying dra-wing forming part of thisspccication.

rlhis invention relatesl to anew and useful improvement in locks, moreespecially designed to be used for.` fastening barn and stable-doors, ordoors of ont-houses, and to be made of wood, but which may be made ot'metal, and used to good advantage on dwelling-houses and other similardoors; and

lt consists in a series ot movable blocks, constructed and arranged tooperate in combination with a latch, a catch, and thc lock-bolt,arranged as hereinafter more fully described.

In the accompanying drawing- Figure l is a view ot the inside of thelock.

Figure 2 is a view of the outside of the door.

Figure 3 is a Cross-section of fig. l, on the line av.

Figure 4 is-a side view of one ofthe movable blocks, by means of `whichthe combinations are formed.

Figure 5 is la side view of one ot' the blocks which is used for raisingthe latch in` locking.

Similar letters ot' reference indicate corresponding parts.

A is the locking-bolt.

B and G are guide-brackets, which are fastened to the door, in whichguides the bolt is moved back and forth. c; l

D isa cross-piece, by which the two brackets are connected.

E is a thin plate,..by which the ends of the brackets are connected,upon which the blocks slide. I p

F represents the blocks, ot' which there may be more or less in number.

The greater `the number of blocks, the greater will be the number ofcombinations.

In this example' of my invention I use ten blocks ot uniform size andform, with the exception of the one shown in iig. 5, for raising thelatch whichlocks the bolt. p

The t'orm of the other blocks is seen in tig. 4.

G is the latch, which -is pivoted at one end to the cross-piece D, asseen at 71, so that thc other end will drop by itsown gravit-y.

l is a catch, which is pivoted at one end, in recess or mortise, in theunder edge ofthe boit A. The opposite end drops down, as seen in thedrawing, and prevents the back movementof thc bolt. Y l

lVhen the latch G is held up by the blocks, as seen in the drawing, thelockingis complete.

A slot or horizontal mortisc is made through the door, to receive thetail ends of theblocks, which are pnt in from the inside, andv kept inposition by stopplate J. (See iig. 3.)

'Fachblcck isindicated by a number on the outside of the door, as seenin fig. 2.

From the peculiar form ofthe blocks, itwill be seen that, by turningthem over and changing their positions, a large number of combinationsmay be made with the ten blocks, amounting to near one thousand.

The blocks or keys are pushed in or pulled out, so as to hold upv thclatch G by a certain" combination ot' numbers.

For unlocking, or to allow the latch toldrop and the bolt to be drawnback, it is only necessary to know what thev combination is to place theblocks in the proper position.

K is a knob on the outside of the door, by means of which the bolt isthrown back and forth when there is no' obstruction.

rlhis is a cheap and safe fastening device, and its advantages for thepurposes intended must be apparent to all. g

Having thus described my invention,

I elaini as new and lesire to secure by Letters Patentlhe blocks F,latch Gr, and catch I, in combination with the bolt A, when the same areconstructed and arranged to operate substantially as and for thepnrposes described. l

Theabove specification of my invention signed by me. this 3d day otAugust, 1870.

SEYMOUR K. SEELYE.

Witnesses L. It. Pmnsox, I?. SHUMWAY.

